The file permission you listed should be OK as long as all the sub-directories are set the same, since everyone can read and write regardless of ownership. Regarding the file permissions, the HFS+ formatted drives do carry UNIX file permissions and the 99 is very much in keeping with what permissions set by OS X look like in Ubuntu. Turning Journaling on will also make the drive read-only to Ubuntu, but I doubt that's the problem, if the drive has worked in the past and you didn't.
Make sure that it the format is something like "Mac OS Extended" or "Mac OS Extended (Case-sensitive)" but NOT Mac OS Extended (Journaled)". Also, select the partition and look at the details at the bottom of the Disk Utility screen. Select Disk Utility (From Applications/Utilities) and ask it to "verify" the drive. However, while you have the drive on your Mac, I'd let OS X check a couple of things on it's own file system. I'd suggest that you plug the drive into your Mac and remove cleanly as I suggested with Windows, this alone will probably resolve your problem. No problem, the output you've given us is sufficient verify that the drive is HFS+ and I get this problem sometimes too with HFS+ drives. Sudo dosfsck -v /dev/xxx (where xxx is the device name) to run a check on the drive.So, is it NTFS? Or is that just the partition on my internal drive? Confused. WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. I/O size (minimum/optimal): 512 bytes / 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes hfs: Filesystem was not cleanly unmounted, running fsck.hfsplus is recommended. sd 7:0:0:0: Assuming drive cache: write through sd 7:0:0:0: Attached scsi generic sg1 type 0 usb 1-1: new high speed USB device using ehci_hcd and address 3 Open a terminal window, plug in the device, then type:Ĥ853.474043] usb 1-1: USB disconnect, address 2
Aha I do recall now that I formatted it to be best for OSX and Linux didn't care about Windows. Spent a great deal of time researching and deciding since I use Mac, Ubuntu and occasionally Windows. What filesystem did you use? (NTFS, Fat32)?Įmbarrassed to say I cannot remember. So I am thinking/hoping I can change the permissions? I should know what those above permissions mean, but. I did have changed permissions issues once before with an external drive I had used on a Mac, but I was able to mount it on that Mac and simply change permissions there. The "Biggirl" with the 99 99 is the one in question. Lrwxrwxrwx 1 root root 6 11:32 cdrom -> cdrom0ĭrwxr-xr-x 2 root root 4096 11:32 cdrom0 However, I also think it's likely you have a file system problem, which can be pursued along the lines of what toz suggested. Please try the following in your terminal, and post the output: You may indeed have a simple permissions problem and we can fix that. If I mount a drive, it comes up as owned by my user name, not number.
Unfortunately, there are no really good choices of format for your drive if you also use Windows, since Windows doesn't read Linux formats at all. NTFS) plug it into to a Windows computer, open it up, then disconnect it cleanly (using the remove hardware function in Windows). If your drive is indeed in a Windows format (i.e. agh sorry.ĭrives in Windows and Mac formats can become read-only to Linux if they are removed uncleanly (i.e unplugged or powered down without warning) from their respective native operating systems. No idea what caused this to happen - how can I change these settings to allow me to be able to write to this drive again? Some terminal command. (Using nautilus GUI to browse files to move to other folders. ?!?! I run nautilus as root, still no joy. Today, I cannot write to any folders on that drive - read only.
Slowly sorting through many files on an external 500 GB USB drive, moving into useful sub-folders. Been happily going along with Lucid Lynx, locked in, no problems.